Copyright	Copyright © 2015 PivotCloud, Inc.
License	Apache-2.0
Maintainer	Lars Kuhtz <lkuhtz@pivotmail.com>
Stability	experimental
Safe Haskell	None
Language	Haskell2010

System.Logger

Contents

Logger Interface
Yet Another Logger
Handle Backend
Logging System Configuration

Description

This module re-exports the logger interface from System.Logger.Types and the implementation of that interface from System.Logger.Logger and System.Logger.Backend.Handle.

Synopsis

Documentation

withConsoleLogger :: (MonadIO m, MonadBaseControl IO m) => LogLevel -> LoggerT Text m α -> m α Source

A simple console logger

import System.Logger

main ∷ IO ()
main = withConsoleLogger Info $ do
    logg Info "moin"
    withLabel ("function", "f") f
    logg Warn "tschüss"
  where
    f = withLevel Debug $ do
        logg Debug "debug f"

withFileLogger :: (MonadIO m, MonadBaseControl IO m) => FilePath -> LogLevel -> LoggerT Text m α -> m α Source

A simple file logger

Logger Interface

module System.Logger.Types

Yet Another Logger

module System.Logger.Logger

Handle Backend

module System.Logger.Backend.Handle

Logging System Configuration

data LogConfig Source

Constructors

LogConfig
Fields _logConfigLogger :: !LoggerConfig _logConfigBackend :: !HandleBackendConfig

Instances

Eq LogConfig
Ord LogConfig
Read LogConfig
Show LogConfig
Generic LogConfig
ToJSON LogConfig
Typeable * LogConfig
FromJSON (LogConfig -> LogConfig)
type Rep LogConfig

logConfigLogger :: Lens' LogConfig LoggerConfig Source

logConfigBackend :: Lens' LogConfig HandleBackendConfig Source

defaultLogConfig :: LogConfig Source

validateLogConfig :: ConfigValidation LogConfig [] Source

pLogConfig :: MParser LogConfig Source

pLogConfig_ Source

Arguments

:: Text	prefix for this and all subordinate command line options.
-> MParser LogConfig

A version of pLogConfig that takes a prefix for the command line option.

@since 0.2